Index: ports-mgmt/portlint/src/portlint.pl
===================================================================
--- ports-mgmt/portlint/src/portlint.pl
+++ ports-mgmt/portlint/src/portlint.pl
@@ -1650,6 +1650,26 @@
 		my %seen = ();
 		@popt = grep { !$seen{$_}++ } @popt;
 	}
+
+	foreach my $i (@popt) {
+		if ($i eq 'PORTDOCS') {
+			if (!grep(/^DOCS$/, @opt)) {
+				&perror("FATAL", $file, -1, "PORTDOCS appears in plist ".
+					"but DOCS is not listed in OPTIONS_DEFINE.");
+			}
+		} elsif ($i eq 'PORTEXAMPLES') {
+			if (!grep(/^EXAMPLES$/, @opt)) {
+				&perror("FATAL", $file, -1, "PORTEXAMPLES appears in plist ".
+					"but EXAMPLES is not listed in OPTIONS_DEFINE.");
+			}
+		} elsif ($i eq 'MANPAGES') {
+			if (!grep(/^MANPAGES$/, @opt)) {
+				&perror("FATAL", $file, -1, "MANPAGES appears in plist ".
+					"but MANPAGES is not listed in OPTIONS_DEFINE.");
+			}
+		}
+	}
+
 	foreach my $i ((@opt, @aopt)) {
 		# skip global options
 		next if ($i eq 'DOCS' or $i eq 'NLS' or $i eq 'EXAMPLES' or $i eq 'IPV6' or $i eq 'X11' or $i eq 'DEBUG');